Time Warner Books. (2005). Mind gym: Wake your mind up. Time Warner Books.
Dyfyniad Arddull ChicagoTime Warner Books. Mind Gym: Wake Your Mind Up. London: Time Warner Books, 2005.
Dyfyniad MLATime Warner Books. Mind Gym: Wake Your Mind Up. Time Warner Books, 2005.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.